Results 81 to 90 of about 1,999 (210)
Engineering Reports, Volume 7, Issue 6, June 2025.This article proposes a method for detecting partial discharge faults in substation GIS based on multi frequency signal CEEMDAN fusion processing algorithm. The main innovations are as follows: (1) Data acquisition and signal enhancement aspects. Segmented data collection: By analyzing the state structure of typical GIS partial discharge faults, the ...
Yuan Sun, Hao Xie, Li Chang
wiley +1 more source
Separation of sources in radiofrequency measurements of partial discharges using time-power ratios maps [PDF]
, 2015 Partial discharges measurement is one of the most useful tools for condition monitoring of high-voltage (HV) equipment. These phenomena can be measured on-line with antennas provided that the signal to noise ratio is improved by reducing common ...
Albarracín Sánchez, Ricardo +3 more
core +3 more sources
Investigation of Partial Discharge in Solid Dielectric under DC Voltage
, 2014 A partial discharge, or PD, is defined as an electrical discharge that is localized within only a part of the insulation between two separated conductors. Recent research on PD mainly focuses on the study of PD characteristics under AC voltage.
Chen, G, He, M, Lewin, P L, Tian, J
core
A New Switching Impulse Generator Based on Transformer Boosting and Insulated Gate Bipolar Transistor Trigger Control [PDF]
, 2016 To make the switching impulse (SI) generator more compact, portable and feasible in field tests, a new approach based on transformer boosting was developed.
Albarracín Sánchez, Ricardo +4 more
core +3 more sources
High Voltage, Volume 10, Issue 3, Page 660-672, June 2025.Abstract Within 30 min after live operation of gas‐insulated switchgear (GIS), more than 60% of discharge failures are caused by metallic particles. To address this issue, this study explored the vibration propagation mechanisms in GIS cavities and established an equivalent vibration transmission model.
Jian Wang +7 more
wiley +1 more source
Application of Sensors and Digitalization Based on IEC 61850 in Medium Voltage Networks and Switchgears [PDF]
, 2016 Vzduchem izolované vysokonapěťové rozváděče jsou nedílnou součástí energetického distribučního řetězce a to jak v průmyslovém, tak ve veřejném sektoru. Hlavní funkcí rozváděče je ochrana pracovního personálu, rozpojování/odpojování a spínání, izolování ...
Štefanka, Martin
core
High Voltage, Volume 10, Issue 2, Page 243-278, April 2025.Abstract Surface flashover is a gas–solid interface insulation failure that significantly jeopardises the secure operation of advanced electronic, electrical, and spacecraft applications. Despite the widespread application of numerous material modification and structure optimisation technologies aimed at enhancing surface flashover performance, the ...
Zhen Li +4 more
wiley +1 more source
Moisture monitoring technology for GIS using dual-cone microfibers
Zhejiang dianliAn increase in moisture content within GIS （gas insulated switchgear） can compromise its insulation integrity. To monitor insulation gas humidity inside GIS， a humidity sensor using dual-cone microfibers is developed.
SHAO Xianjun +6 more
doaj +1 more source
Recurrent Neural Network for Partial Discharge Diagnosis in Gas-Insulated Switchgear
Energies, 2018 The analysis of partial discharge (PD) signals has been identified as a standard diagnostic tool for monitoring the condition of different electrical apparatuses.
Minh-Tuan Nguyen +3 more
doaj +1 more source
Imaging time series for the classification of EMI discharge sources [PDF]
, 2018 In this work, we aim to classify a wider range of Electromagnetic Interference (EMI) discharge sources collected from new power plant sites across multiple assets. This engenders a more complex and challenging classification task.
Boreham, Philip +5 more
core +2 more sources